[issue5455] csv module no longer works as expected when file opened in binary mode

[Jervis Whitley]

Changes by Jervis Whitley <jervisau at gmail.com>:


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nosy: +jdwhitley
nosy_count: 1.0 -> 2.0

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5455>
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